Home / 1,546.53-2,135.21-1,380.47

Finding the Fourth Proportional to 1,546.53, 2,135.21 and 1,380.47

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Solution

The fourth proportional to 1,546.53, 2,135.21 and 1,380.47 is: 1,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.53 : 2,135.21 = 1,380.47 : x
  2. Step 2: Convert to fraction form
    1,546.53/2,135.21 = 1,380.47/x
  3. Step 3: Cross multiply
    1,546.53x = 2,135.21 × 1,380.47
  4. Step 4: Simplify right side
    1,546.53x = 2,947,575.77
  5. Step 5: Solve for x
    x = 2,947,575.77/1,546.53
  6. Step 6: Final answer
    x = 1,905.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.